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Electric Water Pump Adaptor for Mazda 12A / 13B / 20B

$696.00 $733.00
10+ in stock
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Electric water pump adaptor to suit Mazda 12A, 13B and 20B rotary engines.

CNC machined from billet 6061-T6 aluminium at our factory in Napier, New Zealand and then black anodised for corrosion resistance and great looks.

Supplied with fasteners required and plug for the temperature sender port.

The EWP adaptors are available in two bolt to suit 12A or 3 bolt pattern to suit 13B & 20B. Please confirm the bolt pattern on your engine prior to purchasing.

Radiator hose fitting options:
32mm tube
38mm tube
20AN (Compatible with two bolt pattern only)

The three bolt flange has an M12X1.5 threaded port for factory temperature sender, and the two bolt flange has a 1/4" NPT threaded port.


Muscle up your engine cooling system with the Davies Craig EWP 150 alloy Electric Water Pump and the LCD EWP/Fan Digital Controller.

Like all EWPs, this advanced unit is designed for remote mounting in the engine bay to satisfy those higher horsepower, turbocharged, supercharged and worked engines which develop excessive heat.

Technical Specifications
Voltage 12 Volt Pump
Operating voltage 3V DC to 15V DC
Maximum current 10A @ 13V
Flow rate (max) 150 L/min (39.63 US gal/min) @ 13V DC
Operating temp. -40 to 130C (-40 to 266F)
Pump design Clockwise centrifugal with volute chamber
Pump weight 1,170 grams (2.6 lb)
Pump material Aluminium (Powder Coated)
Burst pressure 500 kPa (72.5 psi)
Seal Ceramic face seal
Self Priming No, none of our pumps are self-priming
Fits hose sizes 35mm to 51mm (1 to 2) Inlet & Outlet -16AN (12)


The updated V2 LCD Digital Controller how has two specific functions. This unique Controller will now manage the operation of the EWP by varying the speed of the EWP in response to the temperature of the engine and manage control of your electric engine fan. The Controller has a push-button on the facia panel that offers target temperatures Singular degrees from 40C (104F)to 110C (230F).

Generally, higher engine temperature will offer improved fuel efficiency and lower engine temperature more power. The LCD Digital Controller will now operate the engines electric fan automatically once the engine has reached +3c above the target temperature. A significant benefit too is the Controller allows the EWP to run on after ignition shutdown to reduce heat soak. It is recommended that engine operational temperatures be checked with manufacturer.

Part No: 8975 - Black

We have side mount alternator brackets also, please check our other listings for combo deals!

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